The new mommy needs a lot of rest! I agree and am so glad you recognize that. You are a good Grandpa!
I have to say I really “feel” mom’s pain...number four child was ten pounds even (and like Richard had those broad baby shoulders and adorable chubby legs—the kicks were so uncomfortable at the end). Baby five was induced two weeks early so he wouldn’t be as large as his brother...and he still was 9lbs 8 ounces). Anyways...the new mom probably had a rough time just with the size/weight/delivery. 9lbs 10ounces, plus fluid, placenta is a lot on lower back/hips.
The three of them are beautiful!!! Cant wait for July here :)